Does Genymotion Desktop support running a Windows guest on a Linux host?
Host Linux, Guest Windows
No, Genymotion Desktop is installed and run on the Linux host, but the retrieved guidance does not say that a Windows guest is supported as a virtual device. For Linux hosts, Genymotion recommends QEMU instead of VirtualBox, and VirtualBox is not recommended on Linux or macOS. See An error has occurred while trying to create a virtualbox host-only network interface and Get Started with Genymotion Desktop.
What are you trying to do with the Windows guest on Linux?